Subject: bug#63155: closed (Re: bug#63159: [PATCH 1/2] gnu: slim: Fix build failure with GCC-11)

From: [email-masked] (GNU bug Tracking System)
Date: Sun, 30 Apr 2023 21:17:01 +0000

Your bug report

#63155: slim fails to build

which was filed against the guix package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to [email-masked].

-- 
63155: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=63155
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Subject: Re: bug#63159: [PATCH 1/2] gnu: slim: Fix build failure with GCC-11
From: Ludovic Courtès <[email-masked]>
To: Brian Cully <[email-masked]>
Cc: [email-masked], [email-masked]
Date: Sun, 30 Apr 2023 23:16:33 +0200
List-Id: <debbugs-submit.debbugs.gnu.org>

Hi,

Brian Cully <[email-masked]> skribis:

> GCC-11 sniffed out a long-standing bug where a pointer was being tested for a
> negative value, which is impossible. Instead, check for NULL, which is how the
> error result is actually returned.
>
> See https://github.com/iwamatsu/slim/issues/14 for details.
>
> * gnu/packages/display-managers.scm (slim) [fix-0-pointer-comparison]: new
> phase

[...]

> Moved to github, according to https://www.berlios.de/software/slim/.
>
> * gnu/packages/display-managers.scm (slim) [home-page]:  update URL.

Applied, thanks!

Ludo’.

Subject: slim fails to build
From: Julian Flake <[email-masked]>
To: [email-masked]
Date: Fri, 28 Apr 2023 21:23:16 +0200
List-Id: <debbugs-submit.debbugs.gnu.org>

compilation error is:

/tmp/guix-build-slim-1.3.6.drv-0/slim-1.3.6/panel.cpp: In 
constructor ‘Panel::Panel(Display*, int, Window, Cfg*, const 
string&, Panel::PanelType)’:
/tmp/guix-build-slim-1.3.6.drv-0/slim-1.3.6/panel.cpp:51:27: 
error: ordered comparison of pointer with integer zero (‘GC’ {aka 
‘_XGC*’} and ‘int’)
   51 |                 if (WinGC < 0) {
      |                     ~~~~~~^~~
make[2]: *** [CMakeFiles/libslim.dir/build.make:121: 
CMakeFiles/libslim.dir/panel.cpp.o] Error 1